/Engine/Source/Runtime/Engine/Classes/Engine/GameViewportClient.h
Make any adjustments to the views after they've been completely set up
virtual void FinalizeViews ( class [FSceneViewFamily](API\Runtime\Engine\FSceneViewFamily) * ViewFamily, const [TMap](API\Runtime\Core\Containers\TMap)< [ULocalPlayer](API\Runtime\Engine\Engine\ULocalPlayer) *, [FSceneView](API\Runtime\Engine\FSceneView) * > & PlayerViewMap )